It often just means different Dell oem power adapter manufacturers such as Liteon vs Huntkey.  These are made to same oem standard and interchangeable 

These appear to be Laptop or All-In-One Desktop AC power adapters.

HA130PM190 = 130W slim AC power adapter

Power Output: 130W (19.5V, 6.7A)

Power Input: 100-240V AC, 50-60Hz (worldwide use)

Connector Type: Barrel tip (typically 7.4mm x 5.0mm or 4.5mm variant with a center pin depending on sub-model)

LA130PM190 = 130W standard AC power adapter

Power Output: 130W (19.5V at 6.7A)

Input Voltage: 100-240V AC (50/60Hz)

Connector Type: Barrel tip large 7.4mm x 5.0mm barrel plug (PA-4E style with center smart pin)

@redxps630​ Thank you so much.

OP you are welcome.  Chris gave a detailed spec answer.

this pic shows a LiteOn made Dell oem 130w adapter LA130PM190

https://i.ebayimg.com/images/g/O6MAAeSwp1dqqBiq/s-l1600.webp

and this pic shows a Chicony made Dell oem 130w adapter HA130PM190

https://i.ebayimg.com/images/g/9~EAAOSw7AZjDOMz/s-l1600.webp

@redxps630​ Awesome, 

Thank you very much for your support. I finally received the clarity I was looking for and now have a complete understanding of the situation.

I now understand that, technically, both power adapters are identical in terms of appearance, dimensions, connector type, and specifications. The only difference is that they are manufactured by different Dell OEM suppliers. They follow the same Dell OEM standards and are fully interchangeable.

We have a Dell OptiPlex 7080 as part of a UC Engine setup. The original HA130PM190 power supply became faulty, and unfortunately, we were unable to source the same model from our suppliers. However, the alternative LA130PM190 is readily available in the market.

I searched extensively for a clear confirmation on whether these two adapters could be used interchangeably, but I was unable to find a definitive answer. Thanks to your assistance, I now have full confidence that the LA130PM190 can safely be used as a replacement for the HA130PM190 without any issues.

Thank you once again (@redxps630 @DELL-ChrisM2,) for your valuable help and support. It is truly appreciated.